Intermittent cutting transferring device

ABSTRACT

In the cutting transferring device according to the present invention, the cut film sheet is configured to be sucked onto the outer peripheral surface of the lower blade roll at a position where both side edge regions of the cut film sheet and a front end region thereof in a proceeding direction face an edge area  41 B- 1  in  41 B of the second region while a remaining region of the cut film sheet faces a center area  41 B- 2  in  41 B of the second region. And a suction holding force in the edge area  41 B- 1  is stronger than a suction holding force in the center area  41 B- 2.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. application Ser. No.12/390,099 and is based on, and claims priority from, JapaneseApplication Number 2008-171894, filed Jun. 30, 2008, the disclosure ofwhich is hereby incorporated by reference herein in its entirety.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to an intermittent cutting transferringdevice configured to cut a continuum of film sheet into film sheets andintermittently transfer the film sheets to a web being continuously fed.

2. Description of the Prior Art

An intermittent cutting device is used in processes of manufacturingdisposable diaper. Conventionally, the intermittent cutting device isconfigured to cut a continuum of film sheet, printed with patterns suchas characters and figures, into the film sheets, and intermittentlytransfer the film sheets to a web being continuously fed.

Generally, the film sheet is configured to have lower breathability,thinner thickness and more flexibility than the web. That is, the filmsheets have characteristics of low rigidity and resilience.

Such an intermittent cutting transferring device includes: an upperblade roll including blades on an outer peripheral surface; and a lowerblade roll including, a stationary blade on an outer peripheral surfaceand a mesh suction plate over the entire outer peripheral surface (forexample, see Japanese Patent Application Publication No. Hei 10-218471(pp 4 to 6 and FIG. 3)).

The upper blade roll and the lower blade roll are configured to rotateat approximately the same peripheral velocity in directions oppositefrom each other. In addition, these rolls are also configured to rotateat peripheral velocities higher than the velocity in which thecontinuous film sheet is fed to the lower blade roll, and to rotate atperipheral velocities approximately equal to or lower than the feedingvelocity of the web.

Hereinafter, steps of intermittently transferring the film sheet to theweb will be described using the intermittent cutting transferring devicedescribed above.

In a first step, the intermittent cutting transferring device guides thecontinuum of film sheet between the blade and the stationary blade withthe continuum of film sheet being sucked onto the outer peripheralsurface of the lower blade roll by the suction through the mesh suctionplate formed over the entire outer peripheral surface of the lower bladeroll.

At this time, the continuum of film sheet slides on the outer peripheralsurface of the lower blade roll to be guided between the blade and thestationary blade since the upper blade roll and the lower blade rollrotate at the peripheral velocities higher than the velocity in whichthe continuous film sheet is fed to the lower blade roll.

In a second step, the intermittent cutting transferring deviceintermittently cuts the continuum of film sheet by bringing the bladeand the stationary blade into contact with each other, and thus forms afilm sheet.

In a third step, the intermittent cutting transferring device guides thefilm sheet which is cut to the web while the film sheet which is cut isbeing sucked onto the outer peripheral surface of the lower blade rollby the suction through the mesh suction plate formed over the entireouter peripheral surface of the lower blade roll.

In a fourth step, the intermittent cutting transferring devicetransfers, to the web, the film sheet which is cut and sucked onto theouter side surface of the lower blade roll.

However, the conventional intermittent cutting transferring devicedescribed above has the following problem. That is, with theconventional intermittent cutting transferring device, a wrinkle isformed in the film sheet which is cut due to conditions such asunevenness in weight (weight per unit area) of the film sheet, contactfailure of the blade and the stationary blade, and occurrence of wear inthe blade.

Accordingly, the film sheet which is cut is transferred to the web withthe wrinkle being formed in the film sheet. Particularly, since the filmsheet which is cut has the characteristics of low rigidity andresilience, once the wrinkle is formed, the film sheet cannot berestored to its original state.

SUMMARY OF THE INVENTION

Thus, the present invention has been made in view of such a situation,and has an object of providing an intermittent cutting transferringdevice which can suppress the formation of a wrinkle in a film sheet andwhich can smooth out a wrinkle formed in the film sheet even when thewrinkle is formed in the film sheet.

To solve the above situation, the present invention comprises thefollowing aspects. A first aspect is summarized as an intermittentcutting transferring device configured to cut a continuum of film sheetinto film sheets and to intermittently transfer one of the film sheetswhich are cut, herein after referred to as “a cut film sheet”, to a webbeing continuously fed. The intermittent cutting transferring devicecomprises an upper blade roll provided with at least one blade on itsouter peripheral surface and a lower blade roll provided with at leastone stationary blade on its outer peripheral surface and having aplurality of suction holes formed on the outer peripheral surface. Theupper blade roll and the lower blade roll rotate at approximately thesame peripheral velocity in directions opposite from each other, rotateat the peripheral velocities higher than a velocity in which thecontinuum of film sheet is fed to the lower blade roll, and rotate atthe peripheral velocities approximately equal to or lower than a feedingvelocity of the web. The continuum of film sheet is guided between theblade and the stationary blade with the continuum of film sheet beingsucked onto the outer peripheral surface of the lower blade roll by asuction through the suction holes formed in a first region on the outerperipheral surface of the lower blade roll. The continuum of film sheetis intermittently cut by bringing the blade and the stationary bladeinto contact with each other, and forms the cut film sheet. The cut filmsheet is guided and transferred to the web while the cut film sheet isbeing sucked onto the outer peripheral surface of the lower blade rollby a suction through the suction holes formed in a second region on theouter peripheral surface of the lower blade roll. The cut film sheet issucked onto the outer peripheral surface of the lower blade roll at aposition where both side edge regions of the cut film sheet and a frontend region thereof in a proceeding direction face an edge area of thesecond region while a remaining region of the cut film sheet faces acenter area in the second region. And a suction holding force in theedge area is stronger than a suction holding force in the center area.

According to the present invention, the intermittent cuttingtransferring device can be provided which can suppress the formation ofa wrinkle in the film sheet and smooth out a wrinkle formed in the filmsheet even when the wrinkle is formed in the film sheet.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view showing an intermittent cuttingtransferring device 1 according to a first embodiment.

FIG. 2 is a side view (view on arrow A of FIG. 1) showing theintermittent cutting transferring device 1 according to the firstembodiment.

FIG. 3 is a roll width direction sectional view (sectional view alongB-B of FIG. 2) showing a lower blade roll 40 according to the firstembodiment.

FIG. 4 is a perspective view showing the lower blade roll 40 accordingto the first embodiment.

FIG. 5 is a development view showing the lower blade roll 40 accordingto the first embodiment.

FIG. 6 is an upper view showing a cut film sheet according to the firstembodiment.

FIG. 7 is a roll width direction sectional view showing the lower bladeroll 40 according to a second embodiment.

FIG. 8 is a development view showing the lower blade roll 40 accordingto the second embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, one example of an intermittent cutting transferring deviceaccording to the present invention will be described with reference tothe drawings. Note that, throughout the drawings, the same or similarportions are denoted by the same or similar reference numerals. However,the drawings are schematic, and it should be noted that the dimensionalproportions and others are different from their actual values.

Thus, specific dimensions and the like should be determined based on thedescriptions given below. It is needless to say that the dimensionalrelationships and dimensional proportions may differ from one drawing toanother in some parts.

First Embodiment (Configuration of Intermittent Cutting TransferringDevice)

First, the configuration of the intermittent cutting transferring deviceaccording to a first embodiment will be described with reference to thedrawings. FIG. 1 is a perspective view showing an intermittent cuttingtransferring device 1 according to the first embodiment. FIG. 2 is aside view (view on arrow A of FIG. 1) showing the intermittent cuttingtransferring device 1 according to the first embodiment.

As shown in FIGS. 1 and 2, the intermittent cutting transferring device1 is configured to intermittently transfer a cut film sheet 10, obtainedby cutting a continuum of cut film sheet 10A printed with patterns suchas characters and figures, to a web 20 being fed continuously.

Note that a length (L1) of the cut film sheet 10 in its feedingdirection (hereinafter called the “MD direction”) is shorter than alength (L2) thereof in a direction crossing the MD direction (thisdirection is hereinafter called the “CD direction”).

The intermittent cutting transferring device 1 is configured briefly ofan upper blade roll 30, a lower blade roll 40, and a transfer roll 50.

Two blades 32 are provided on an outer peripheral surface 31 of theupper blade roll 30. The upper blade roll 30 rotates at a peripheralvelocity (V₁) approximately equal to a peripheral velocity of the lowerblade roll 40. The upper blade roll 30 rotates at the peripheralvelocity (V₁) higher than a velocity (V₂) in which the continuum of filmsheet 10A is fed to the lower blade roll 40 by a pair of driving rolls60 and 61. The upper blade roll 30 rotates at the peripheral velocity(V₁) approximately equal to a feeding velocity (V₃) of the web 20continuously fed by driving rolls 62 and 63, or rotates at theperipheral velocity (V₁) lower than the feeding velocity (V₃) of the web20.

In an outer peripheral surface 41 of the lower blade roll 40, two anvilelements 42 are provided, and suction holes 43 which suck the continuumof film sheet 10A and the cut film sheet 10 are formed. The lower bladeroll 40 rotates at the peripheral velocity (V₁) approximately equal tothe peripheral velocity of the upper blade roll 30, in a directionopposite to the direction in which the upper blade roll 30 rotates. Theconfiguration of the lower blade roll 40 will be described later (seeFIG. 3).

The transfer roll 50 brings the web 20 continuously fed by the drivingrolls 62 and 63 into contact with the lower blade roll 40. The transferroll 50 rotates at a peripheral velocity (V₄) approximately equal to thefeeding velocity (V₃) of the web 20. In other words, the transfer roll50 rotates at the peripheral velocity (V₄) approximately equal to theperipheral velocity (V₁) of the upper blade roll 30 and the lower bladeroll 40 described above, or rotates at the peripheral velocity (V₄)higher than the peripheral velocity (V₁) of the upper blade roll 30 andthe lower blade roll 40.

(Configuration of Lower Blade Roll)

Next, the configuration of the lower blade roll 40 described above willbe described with reference to the drawings. FIG. 3 is a roll widthdirection sectional view (sectional view along B-B of FIG. 2) showingthe lower blade roll 40 according to the first embodiment.

As shown in FIG. 3, the lower blade roll 40 is formed integrally with aroll shaft 70. The lower blade roll 40 is configured to be rotatedbetween a pair of frames 71 A and 71 B by shaft bearings 72.

Formed in the lower blade roll 40 are horizontal holes 45A and 45Bpenetrating from one end surface 44 a to the other end surface 44 b ofthe lower blade roll 40 and opening holes 46A and 46B connecting thehorizontal holes 45A and 45B and suction holes 43. The suction holes 43are formed at positions corresponding to the opening holes 46A and 46B.

A suction member 80 is provided between the lower blade roll 40 and theone frame 71A, whereas a sealing member 90 is provided between the lowerblade roll 40 and the other frame 71B.

The suction member 80 and the sealing member 90 each have a diameterapproximately equal to the diameter of the lower blade roll 40, and areformed in a disk shape. The suction member 80 and the sealing member 90are fixed to the frames 71A and 71B, respectively, and are configured soas not to rotate together with the lower blade roll 40.

The suction member 80 is provided with a first suction groove 81 whichsucks the continuous film sheet 10A, a second suction groove 82 whichsucks the cut film sheet 10 to guide the cut film sheet 10 to the web20, and a transfer groove 83 for transferring, on the web 20, the cutfilm sheet 10 sucked onto the outer peripheral surface 41 of the lowerblade roll 40.

The first suction groove 81 is formed at a position corresponding to thehorizontal hole 45A formed in the lower blade roll 40, and also to aportion of the outer peripheral surface 41 of the lower blade roll 40around which the continuum of film sheet 10A is wound. The first suctiongroove 81 is connected with a suction connection pipe 84 connecting thefirst suction groove 81 and suction air supply means (not shown) whichsucks air in the horizontal hole 45A.

The second suction groove 82 is formed at a position corresponding tothe horizontal hole 45B formed in the lower blade roll 40, and to aportion of the outer peripheral surface 41 of the lower blade roll 40around which the cut film sheet 10 is wound. The second suction groove82 is connected with a suction connection pipe 85 connecting the secondsuction groove 82 and suction air supply means (not shown) which sucksair in the horizontal hole 45B.

The transfer groove 83 is formed at a position corresponding to thehorizontal hole 45B formed in the lower blade roll 40, and to a portionto which the cut film sheet 10 is transferred. The transfer groove 83 isconnected with a transfer connection pipe (not shown) connecting thetransfer groove 83 and air releasing means (not shown) which releasesthe suction of air performed by the suction air supply means.

Note that the air releasing means does not necessarily need to releasethe suction of air performed by the suction air supply means, and may beconfigured to blow out air through the transfer groove 83 (transferconnection pipe).

In this embodiment, the suction member 80 is provided between the lowerblade roll 40 and the one frame 71A. However, it is not limited to thisconfiguration, and the suction member 80 may be additionally provided,instead of the sealing member 90, between the lower blade roll 40 andthe other frame 71 B. That is, the suction air supply means may performsupply of air from both end sections of the horizontal holes 45A and45B.

(Alignment of Suction Holes)

Next, the alignment of suction holes 43 provided in the lower blade roll40 described above will be described with reference to the drawings.FIG. 4 is a perspective view showing the lower blade roll 40 accordingto the first embodiment. FIG. 5 is a development view of the lower bladeroll 40 according to the first embodiment. FIG. 6 is an upper viewshowing the cut film sheet according to the first embodiment.

As shown in FIGS. 4 and 5, the suction holes 43 are formed in a firstregion 41A and in a second region 41 B on the outer peripheral surface41 of the lower blade roll 40. In the first region 41A and in the secondregion 41B, the suction holes 43 are arranged at predetermined intervalsin the roll peripheral direction and in the roll width direction, andare aligned such that the suction holes 43 that are adjacent in the rollperipheral direction are displaced from each other in the roll widthdirection (a so-called staggered alignment).

The first region 41A is configured of suction regions 41A-1 each ofwhich having the multiple suction holes 43 formed therein, andnon-suction regions 41A-2 each of which having no suction hole 43 formedtherein. Accordingly, the suction holding force in the suction regions41A-1 is stronger than the suction holding force in the non-suctionregions 41A-2.

The suction regions 41A-1 and the non-suction regions 41A-2 are providedin the roll width direction. The suction regions 41A-1 and thenon-suction regions 41A-2 are provided alternately in the rollperipheral direction.

Each of the regions 41A-1 is configured so that a width (W1) of thesuction region 41A-1 in the roll peripheral direction can be shorterthan a width (W2) of each non-suction region 41A-2 in the rollperipheral direction.

Each of the regions 41A-1 is configured so that a width (W3) of thesuction region 41A-1 in the roll width direction can be wider than thelength (L2) of the cut film sheet 10 in the CD direction.

The second region 41B is configured of an edge area 41B-1 having themultiple suction holes 43 formed therein, and a center area 41B-2 havingno suction hole 43 formed therein. Accordingly, the suction holdingforce in the edge area 41B-1 is stronger than the suction holding forcein the center area 41B-2.

The edge area 41B-1 faces both side edge regions 11 and a front endregion 12 formed ahead in the proceeding direction of the cut film sheet10.

As shown in FIG. 6, the both side edge regions 11 of the cut film sheet10 show regions within 25% of the length (L2) in the CD direction withboth end sections 11A of the cut film sheet 10 as the references. Thefront end region 12 of the cut film sheet 10 formed ahead in theproceeding direction shows a region within 50% of the length (L1) in theMD direction with a front end section 12A of the cut film sheet as thereference. Note that the area of the center area 41B-2 needs to have anarea that is 50% or more of a whole area of the cut film sheet 10.

A maximum width (W4) of the edge area 41B-1 in the roll width directionis approximately equivalent to the width (W3) of the suction region41A-1 in the roll width direction described above, i.e., configured tobe wider than the length (L2) of the cut film sheet 10 in the CDdirection.

The center area 41B-2 faces a remaining region 13 which is a regionother than the both side edge regions 11 and the front end region 12formed ahead in the proceeding direction of the cut film sheet 10. Notethat, as shown in FIG. 6, the remaining region 13 shows a region insidethe both side edge regions 11 and the front end region 12 formed aheadin the proceeding direction of the cut film sheet 10 described above.

(Operation of Intermittent Cutting Transferring Device)

Next, the operation of the intermittent cutting transferring device 1according to the first embodiment will be described briefly.

In a first step, the intermittent cutting transferring device 1 guidesthe continuum of film sheet 10A between the blade 32 and the anvilelement 42 with the continuum of film sheet 10A being sucked onto theouter peripheral surface 41 of the lower blade roll 40 by the suction ofthe suction air supply means through the suction holes 43 formed in thefirst region 41A (suction region 41A-1) on the outer peripheral surface41 of the lower blade roll 40.

At this time, the continuum of film sheet 10A slides on the outerperipheral surface 41 of the lower blade roll 40 to be guided betweenthe blade 32 and the anvil element 42 because the upper blade roll 30and the lower blade roll 40 rotate at the peripheral velocity (V₁)higher than the velocity (V₂) in which the continuum of film sheet 10Ais fed to the lower blade roll 40.

In a second step, the intermittent cutting transferring device 1intermittently cuts the continuum of film sheet 10A by bringing theblade 32 and the anvil element 42 into contact with each other. The cutfilm sheet 10 is thus formed. Note that the length (L1) of the cut filmsheet 10 in the MD direction is shorter than the length (L2) of the cutfilm sheet 10 in the CD direction.

In a third step, the intermittent cutting transferring device 1 guidesthe cut film sheet 10 to the web 20 while the cut film sheet 10 is beingsucked onto the outer peripheral surface 41 of the lower blade roll 40by the suction of the suction air supply means, through the suctionholes 43 formed in the second region 41B (edge area 41B-1) on the outerperipheral surface 41 of the lower blade roll 40.

That is, the cut film sheet 10 is sucked onto the outer peripheralsurface 41 of the lower blade roll 40 with the both side edge regions 11and the front end region 12 formed ahead in the moving direction facingthe edge area 41B-1 of the second region 41B as well as the remainingregion 13 facing the center area 41B-2 of the second region 41B.

In a fourth step, the intermittent cutting transferring device 1transfers the cut film sheet 10 sucked onto the outer side surface 41 ofthe lower blade roll 40 to the web 20 by releasing the suction of airperformed by the suction air supply means.

(Operation and Effect of First Embodiment)

In the intermittent cutting transferring device 1 according to the firstembodiment, the suction holding force of the edge area 41B-1 is strongerthan the suction holding force in the center area 41B-2. On thisassumption, the operation and effect achieved until the cut film sheet10 is guided to the web 20 (at the time of film feeding) will first bedescribed.

In the remaining region 13 other than the both side edge regions 11 andthe front end region 12, the cut film sheet 10 comes into the suctionholes 43 in less cases compared to the both side edge regions 11 and thefront end region 12, whereby the formation of a wrinkle of the cut filmsheet 10 can be suppressed. Moreover, the cut film sheet 10 is pulledtoward the edge area 41B-1 sides. Accordingly, even when the wrinkle isformed in the cut film sheet 10, the wrinkle formed in the cut filmsheet 10 can be smoothed out in the remaining region 13 other than theboth side edge regions 11 and the front end region 12.

Next, the operation and effect achieved when the cut film sheet 10 istransferred to the web 20 (at the time of film transfer) will bedescribed.

When the cut film sheet 10 makes contact on the web 20 firstly with thefront end region 12. At this time, the air releasing means releases thesuction of air performed by the suction air supply means, whereby thecut film sheet 10 makes contact on the web 20 firstly with the centerarea 41B-2 having a weak suction holding force. That is, since thesuction holding force in the center area 41B-2 is weaker than thesuction holding force in the edge area 41B-1, it becomes easier totransfer the cut film sheet 10 to the web 20 from the center area 41B-2having a weak suction holding force, as compared to the case where thesuction holding force is the same in the entire region of the outerperipheral surface 41 of the lower blade roll 40. Thus, the formation ofa wrinkle in the cut film sheet 10 can be suppressed.

The intermittent cutting transferring device 1 according to the firstembodiment has no suction hole 43 formed in the center area 41B-2.Accordingly, at the time of the film feeding and the film transfer, thecut film sheet 10 is not sucked onto the outer peripheral surface 41 ofthe lower blade roll 40 in the center area 41B-2, whereby the cut filmsheet 10 does not come into the suction hole 43. Thus, the formation ofa wrinkle in the cut film sheet 10 can be suppressed

Note that, when the length (L1) of the cut film sheet 10 in the MDdirection is shorter than the length (L2) in the CD direction, theweight of the cut film sheet easily becomes uneven, and a wrinkle iseasily formed in the cut film sheet 10 by a contact failure of the bladeand the anvil element or a wear of the blade.

On the other hand, in the intermittent cutting transferring device 1according to the first embodiment, as described above, the suctionholding force in the edge area 41B-1 is stronger than the suctionholding force in the center area 41B-2. Accordingly, the formation of awrinkle in the cut film sheet 10 can be suppressed. Even when thewrinkle is formed in the cut film sheet 10, a wrinkle formed in the cutfilm sheet 10 can be smoothed out. Thus, it is particularly effectivewhen the length (L1) of the cut film sheet 10 in the MD direction isshorter than the length (L2) in the CD direction.

The intermittent cutting transferring device 1 according to the firstembodiment is configured so that the maximum width (W4) of the edge area41B-1 in the roll width direction is approximately equal to the width(W3) of the suction region 41A-1 in the roll width direction describedabove, or, in other words, so that the maximum width (V1/4) is widerthan the length (L2) of the cut film sheet 10 in the CD direction.Accordingly, the both side edge regions 11 and the front end region 12formed ahead in the proceeding direction of the cut film sheet 10 canreliably be sucked by the suction through the suction holes 43 formed inthe edge area 41B-1. Thus, at the time of transfer, the both side edgeregions 11 and the front end region 12 formed ahead in the proceedingdirection of the cut film sheet 10 can be prevented from being bent.

Second Embodiment

Hereinafter, the configuration of the intermittent cutting transferringdevice 1 according to a second embodiment will be described withreference to the drawings. Note that the same portions as those of theabove-described intermittent cutting transferring device 1 according tothe first embodiment are denoted by the same reference numerals, anddiffering portions will mainly be described.

Specifically, the first embodiment described above has no suction hole43 formed in the center area 41B-2. In contrast, in the secondembodiment, the suction holes 43 are formed in the center area 41B-2.

(Configuration of Lower Blade Roll)

First, the configuration of the lower blade roll 40 according to thesecond embodiment will be described with reference to the drawing. FIG.7 is a roll width direction sectional view showing the lower blade roll40 according to the second embodiment.

As shown in FIG. 7, the intermittent cutting transferring device 1 isconfigured so that at least one of the suction holding force in the edgearea 41B-1 and the suction holding force in the center area 41B-2 wouldbe variable.

In addition to that between the lower blade roll 40 and the one frame71A, the suction member 80 is provided also between the lower blade roll40 and the other frame 71B.

A first horizontal hole 450A and a first opening hole 460A are formed inthe lower blade roll 40. The first horizontal hole 450A penetrates fromthe one end surface 44 a to the other end surface 44 b of the lowerblade roll 40, and the first opening hole 460A connects the firsthorizontal hole 450A and the suction holes 43 formed in the edge area41B-1.

In addition, a second horizontal hole 450B and a second opening hole460B are also formed in the lower blade roll 40. The second horizontalhole 450B extends approximately in parallel to the first horizontal hole450A and penetrates from the one end surface 44 a to the other endsurface 44 b of the lower blade roll 40, and the second opening hole460B connects the second horizontal hole 450B and the suction holes 43formed in the center area 41B-2.

The first horizontal hole 450A is connected to suction air supply means(not shown) through a first suction groove 81A and a suction connectionpipe 84A. The second horizontal hole 450B is connected to suction airsupply means (not shown), which is provided separately from the suctionair supply means connected with the first horizontal hole 450A, througha first suction groove 81B and a suction connection pipe 84B.

Further, a third horizontal hole 451A and a third opening hole 461A areprovided in the lower blade roll 40. The third horizontal hole 451Apenetrates from the one end surface 44 a to the other end surface 44 bof the lower blade roll 40, and the third opening hole 461A connects thethird horizontal hole 451A and the suction holes 43 formed in the edgearea 41B-1.

In addition, a fourth horizontal hole 451B and a fourth opening hole461B are also formed in the lower blade roll 40. The fourth horizontalhole 451 B extends approximately in parallel to the third horizontalhole 451A and penetrates from the one end surface 44 a to the other endsurface 44 b of the lower blade roll 40, and the fourth opening hole461B connects the fourth horizontal hole 451B and the suction holes 43formed in the center area 41B-2.

The third horizontal hole 451A is connected to suction air supply means(not shown) through a second suction groove 82A and a suction connectionpipe 85A. The fourth horizontal hole 451B is connected to suction airsupply means (not shown), which is provided separately from the suctionair supply means connected with the third horizontal hole 451A, througha second suction groove 82B and a suction connection pipe 85B.

(Alignment of Suction Holes)

Next, the alignment of the suction holes 43 according to the secondembodiment will be described with reference to the drawing. FIG. 8 is adevelopment view showing the lower blade roll 40 according to the secondembodiment.

As shown in FIG. 8, the suction holes 43 are formed in the entire regionof the second region 41B. Note that the suction holding force in theedge area 41B-1 is stronger than the suction holding force in the centerarea 41B-2.

That is, since the suction force of the suction air supply means throughthe suction holes 43 formed in the edge area 41B-1 is stronger than thesuction force of the suction air supply means through the suction holes43 formed in the center area 41B-2, the suction holding force in theedge area 41B-1 can be made stronger than the suction holding force inthe center area 41B-2.

In the description of the above second embodiment, the suction force ofthe suction air supply means through the suction holes 43 in the edgearea 41B-1 is stronger than the suction force of the suction air supplymeans through the suction holes 43 formed in the center area 41B-2.Note, however, that it is not limited thereto, and the aperture ratio ofthe suction holes 43 formed in the edge area 41B-1 may be larger thanthe aperture ratio of the suction holes 43 formed in the center area41B-2.

(Operation and Effect of Second Embodiment)

In addition to the operation and effect of the first embodimentdescribed above, in the intermittent cutting transferring device 1according to the second embodiment, the edge area 41B-1 and the centerarea 41B-2 can be set in accordance with the size of the cut film sheet10 (for example, the length (L2) of the cut film sheet 10 in the CDdirection). Accordingly, the intermittent cutting transferring device 1according to the second embodiment is able to manufacture the cut filmsheet 10 in various sizes.

Other Embodiments

As described above, the content of the present invention has beendisclosed through the embodiments of the present invention, but thedescriptions and drawings forming a part of the disclosure should not beconstrued to limit the present invention.

In the embodiments, two blades 32 are provided on the outer peripheralsurface 31 of the upper blade roll 30. However, it is not limitedthereto, and at least one blade 32 may be provided. In the same manner,at least one anvil element 42 may be provided on the outer peripheralsurface 41 of the lower blade roll 40.

In the embodiments, the first region 41A is configured of the suctionregion 41A-1 and the non-suction region 41A-2, but it is not limitedthereto. It is needless to say that the suction holes 43 may be formedin the entire region.

Various alternative embodiments, examples, and application technologywill become clear to those skilled in the art from this disclosure.Thus, the technical scope of the present invention is defined only bythe claims appropriate from the descriptions above.

1. An intermittent cutting transferring device configured to cut a firstweb into individual sheets and to intermittently transfer the individualsheets onto a second web being continuously fed, said device comprising:an upper blade roll including at least one blade on an outer peripheralsurface thereof; and a lower blade roll including, on an outerperipheral surface thereof, at least one anvil element and a pluralityof suction holes, wherein the upper blade roll and the lower blade rollare rotatable in opposite moving directions at approximately the sameperipheral velocity, which is higher than a velocity in which the firstweb is fed to the lower blade roll, and equal to or lower than a feedingvelocity of the second web, the blade and the anvil element areconfigured to guide the first web therebetween while the first web isbeing sucked onto the outer peripheral surface of the lower blade rollby a suction through the suction holes formed in a first region on theouter peripheral surface of the lower blade roll, the blade and theanvil element are adapted to be brought into contact with each other tointermittently cut the first web into the individual sheets, each of theindividual sheets cut from the first web is arranged to be guided andtransferred onto the second web while the sheet is being sucked onto theouter peripheral surface of the lower blade roll by a suction throughthe suction holes formed in a second region on the outer peripheralsurface of the lower blade roll, the cut sheet is arranged to be suckedonto the outer peripheral surface of the lower blade roll at a positionwhere both side edge regions of the cut sheet and a front end region ofthe cut sheet face an edge area of the second region while a remainingregion of the cut sheet faces a center area of the second region, thesuction holes are arranged in both the center area and the edge area ofthe second region, a suction holding force in the edge areacorresponding to said front end region and said side edge regions of thecut sheet is stronger than a suction holding force in the center areacorresponding to said remaining region of the cut sheet, and at leastone of the suction holding force in the edge area and the suctionholding force in the center area is variable.
 2. The intermittentcutting transferring device according to claim 1, wherein a length ofthe second region in the moving direction is shorter than a width of thesecond region in the roll width direction crossing the moving direction,so as to suck the cut sheet having a length in the moving directionshorter than a length in the roll width direction.
 3. The intermittentcutting transferring device according to claim 1, wherein the suctionholes in the first region are arranged in rows along the roll widthdirection crossing the moving direction.
 4. The intermittent cuttingtransferring device according to claim 1, wherein the width of the firstregion is configured to be wider than a length of the cut sheet in theroll width direction.
 5. The intermittent cutting transferring deviceaccording to claim 1, wherein the first region is entirely locateddownstream of the second region in the moving direction of the lowerblade roll.
 6. The intermittent cutting transferring device according toclaim 3, wherein the rows of the suction holes in the first region aregrouped into several groups spaced from one another in the movingdirection, a distance between adjacent two rows in the moving directionin each group is smaller than a distance between adjacent two groups inthe moving direction, and the suction holes in the rows in each groupare staggered relative to each other in both the moving direction andthe roll width direction.
 7. The intermittent cutting transferringdevice according to claim 6, wherein the rows of the suction holes inthe first region have substantially same widths in the roll widthdirection.
 8. The intermittent cutting transferring device according toclaim 6, wherein a dimension of each of the groups in the movingdirection is shorter than the distance between two adjacent rows in themoving direction.